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A platform for research: civil engineering, architecture and urbanism
High-entropy rare earth boride ceramic material as well as preparation method and application thereof
The invention discloses a high-entropy rare earth boride ceramic material as well as a preparation method and application thereof. The preparation method of the high-entropy rare earth boride ceramic material comprises the following steps: 1) mixing metal oxide powder and boron carbide powder, grinding to prepare mixed powder, and tabletting to prepare a green body; 2) embedding the green body into a graphite felt, and then placing the graphite felt in a protective atmosphere for electric field sintering to prepare a clinker; (3) grinding the clinker into powder, sieving, and carrying out tabletting and cold isostatic pressing on the sieved clinker powder to prepare a clinker green body; and 4) embedding the clinker blank into the graphite felt, and then placing the graphite felt in a protective atmosphere for electric field sintering at normal pressure. The high-entropy rare earth boride ceramic material has the advantages of huge component space, uniform metal element distribution, component content close to design proportion, excellent mechanical property, adjustable performance and the like, the preparation process is simple, the reaction time is short, the equipment requirement is low, the preparation cost is low, and large-scale industrial production is facilitated.
本发明公开了一种高熵稀土硼化物陶瓷材料及其制备方法和应用。本发明的高熵稀土硼化物陶瓷材料的制备方法包括以下步骤：1)将金属氧化物粉体和碳化硼粉体混合进行研磨制成混合粉体后压片制成生坯；2)将生坯嵌入石墨毡内部，再置于保护气氛中进行电场烧结制成熟料；3)将熟料研磨成粉后过筛，再取筛下熟料粉体进行压片和冷等静压成型制成熟料坯体；4)将熟料坯体嵌入石墨毡内部，再置于保护气氛中常压下进行电场烧结。本发明的高熵稀土硼化物陶瓷材料具有组分空间巨大、金属元素分布均匀、成分含量接近设计比例、力学性能优异、性能可调控等优点，且其制备工艺简单、反应时间短、设备要求低、制备成本低，有利于进行大规模工业生产。
High-entropy rare earth boride ceramic material as well as preparation method and application thereof
The invention discloses a high-entropy rare earth boride ceramic material as well as a preparation method and application thereof. The preparation method of the high-entropy rare earth boride ceramic material comprises the following steps: 1) mixing metal oxide powder and boron carbide powder, grinding to prepare mixed powder, and tabletting to prepare a green body; 2) embedding the green body into a graphite felt, and then placing the graphite felt in a protective atmosphere for electric field sintering to prepare a clinker; (3) grinding the clinker into powder, sieving, and carrying out tabletting and cold isostatic pressing on the sieved clinker powder to prepare a clinker green body; and 4) embedding the clinker blank into the graphite felt, and then placing the graphite felt in a protective atmosphere for electric field sintering at normal pressure. The high-entropy rare earth boride ceramic material has the advantages of huge component space, uniform metal element distribution, component content close to design proportion, excellent mechanical property, adjustable performance and the like, the preparation process is simple, the reaction time is short, the equipment requirement is low, the preparation cost is low, and large-scale industrial production is facilitated.
本发明公开了一种高熵稀土硼化物陶瓷材料及其制备方法和应用。本发明的高熵稀土硼化物陶瓷材料的制备方法包括以下步骤：1)将金属氧化物粉体和碳化硼粉体混合进行研磨制成混合粉体后压片制成生坯；2)将生坯嵌入石墨毡内部，再置于保护气氛中进行电场烧结制成熟料；3)将熟料研磨成粉后过筛，再取筛下熟料粉体进行压片和冷等静压成型制成熟料坯体；4)将熟料坯体嵌入石墨毡内部，再置于保护气氛中常压下进行电场烧结。本发明的高熵稀土硼化物陶瓷材料具有组分空间巨大、金属元素分布均匀、成分含量接近设计比例、力学性能优异、性能可调控等优点，且其制备工艺简单、反应时间短、设备要求低、制备成本低，有利于进行大规模工业生产。
High-entropy rare earth boride ceramic material as well as preparation method and application thereof
一种高熵稀土硼化物陶瓷材料及其制备方法和应用
CHU YANHUI (author) / TANG HAIFENG (author) / QIN YEXIA (author) / WEN ZIHAO (author) / XIE PINGBO (author)
2024-03-15
Patent
Electronic Resource
Chinese
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